They make their kids do chores

"If kids aren't doing the dishes, it means someone else is doing that for them," Julie Lythcott-Haims, former dean of freshmen at Stanford University and author of "How to Raise an Adult" said during aTED Talks Live event.

"And so they're absolved of not only the work, but of learning that work has to be done and that each one of us must contribute for the betterment of the whole," she said.

Lythcott-Haims believes kids raised on chores go on to become employees who collaborate well with their coworkers, are more empathetic because they know firsthand what struggling looks like, and are able to take on tasks independently.

She bases this on the Harvard Grant Study, the longest longitudinal study ever conducted.

"By making them do chores — taking out the garbage, doing their own laundry — they realize I have to do the work of life in order to be part of life," she tells Tech Insider.

The 20-year study showed that socially competent children who could cooperate with their peers without prompting, be helpful to others, understand their feelings, and resolve problems on their own, were far more likely to earn a college degree and have a full-time job by age 25 than those with limited social skills.

Those with limited social skills also had a higher chance of getting arrested, binge drinking, and applying for public housing.

They get along with each other for the most part

Robert Hughes Jr., professor and head of the Department of Human and Community Development in the College of ACES at the University of Illinois and study review author, also notes that some studies have found children in nonconflictual single-parent families fare better than children in conflictual two-parent families.

The conflict between parents prior to divorce also affects children negatively, while post-divorce conflict has a strong influence on children's adjustment, Hughes says.

One study found that, after divorce, when a father without custody has frequent contact with his kids and there is minimal conflict, children fare better. But when there is conflict, frequent visits from the father are related to poorer adjustment of children.

Yet another study found that 20-somethings who experienced divorce of their parents as children still report pain and distress over their parent's divorce 10 years later. Young people who reported high conflict between their parents were far more likely to have feelings of loss and regret.

When they do face conflict, they fight fair in front of their kids

When kids witness mild to moderate conflict that involves support, compromise, and positive emotions at home, they learn better social skills, self-esteem, and emotional security, which can help parent-child relations and how well they do in school, E. Mark Cummings, a developmental psychologist at Notre Dame University, tells Developmental Science.

"When kids witness a fight and see the parents resolving it, they're actually happier than they were before they saw it," he says. "It reassures kids that parents can work things through."

Cummings said kids pick up on when a parent is giving in to avoid a fight or refusing to communicate, and their own emotional response is not positive.

"Our studies have shown that the long-term effects of parental withdrawal are actually more disturbing to kids' adjustment than open conflict," he says. He explains the children in this instance can perceive that something is wrong, which leads to stress, but they don't understand what or why, which means it's harder for them to adjust.

Chronic stress from repeated exposure to destructive conflict can result in kids that are worried, anxious, hopeless, angry, aggressive, behaviorally-challenged, sickly, tired, and struggling academically.

They've attained higher educational levels

A 2014 study lead by University of Michigan psychologist Sandra Tang found that mothers who finished high school or college were more likely to raise kids that did the same.

Pulling from a group of over 14,000 children who entered kindergarten in 1998 to 2007, the study found that children born to teen moms (18 years old or younger) were less likely to finish high school or go to college than their counterparts.

Aspiration is at least partially responsible. In a 2009 longitudinal study of 856 people in semirural New York, Bowling Green State University psychologist Eric Dubow found that "parents' educational level when the child was 8 years old significantly predicted educational and occupational success for the child 40 years later."

They teach their kids math early on

A 2007 meta-analysis of 35,000 preschoolers across the US, Canada, and England found that developing math skills early can turn into a huge advantage.

"The paramount importance of early math skills — of beginning school with a knowledge of numbers, number order, and other rudimentary math concepts — is one of the puzzles coming out of the study," coauthor and Northwestern University researcher Greg Duncan said in a press release. "Mastery of early math skills predicts not only future math achievement, it also predicts future reading achievement."

They develop a relationship with their kids

A 2014 study of 243 people born into poverty found that children who received "sensitive caregiving" in their first three years not only did better in academic tests in childhood, but had healthier relationships and greater academic attainment in their 30s.

As reported on PsyBlog, parents who are sensitive caregivers "respond to their child's signals promptly and appropriately" and "provide a secure base" for children to explore the world.

They're less stressed

According to recent research cited by Brigid Schulte at The Washington Post, the number of hours that moms spend with kids between ages 3 and 11 does little to predict the child's behavior, well-being, or achievement.

"Mothers' stress, especially when mothers are stressed because of the juggling with work and trying to find time with kids, that may actually be affecting their kids poorly," study coauthor and Bowling Green State University sociologist Kei Nomaguchi told The Post.

Emotional contagion — or the psychological phenomenon where people "catch" feelings from one another like they would a cold — helps explain why. Research shows that if your friend is happy, that brightness will infect you; if she's sad, that gloominess will transfer as well. So if a parent is exhausted or frustrated, that emotional state could transfer to the kids.

They value effort over avoiding failure

Where kids think success comes from also predicts their attainment.

Over decades, Stanford University psychologist Carol Dweck has discovered that children (and adults) think about success in one of two ways. Over at the always-fantastic Brain Pickings, Maria Popova says they go a little something like this:

A "fixed mindset" assumes that our character, intelligence, and creative ability are static givens that we can't change in any meaningful way, and success is the affirmation of that inherent intelligence, an assessment of how those givens measure up against an equally fixed standard; striving for success and avoiding failure at all costs become a way of maintaining the sense of being smart or skilled.

A "growth mindset," on the other hand, thrives on challenge and sees failure not as evidence of un-intelligence but as a heartening springboard for growth and for stretching our existing abilities.

At the core is a distinction in the way you assume your will affects your ability, and it has a powerful effect on kids. If kids are told that they aced a test because of their innate intelligence, that creates a "fixed" mindset. If they succeeded because of effort, that teaches a "growth" mindset.

The moms work outside the home

The study found daughters of working mothers went to school longer, were more likely to have a job in a supervisory role, and earned more money — 23% more compared to their peers who were raised by stay-at-home mothers.

The sons of working mothers also tended to pitch in more on household chores and childcare, the study found — they spent seven-and-a-half more hours a week on childcare and 25 more minutes on housework.

"Role modeling is a way of signaling what's appropriate in terms of how you behave, what you do, the activities you engage in, and what you believe," the study's lead author, Harvard Business School professor Kathleen L. McGinn, told Business Insider.

"There are very few things, that we know of, that have such a clear effect on gender inequality as being raised by a working mother," she told Working Knowledge.

As "Drive" author Dan Pink has noted, the higher the income for the parents, the higher the SAT scores for the kids.

"Absent comprehensive and expensive interventions, socioeconomic status is what drives much of educational attainment and performance," he wrote.

They are "authoritative" rather than "authoritarian" or "permissive"

First published in the 1960s, research by University of California at Berkeley developmental psychologist Diana Baumride found there are basically three kinds of parenting styles:

Permissive: The parent tries to be nonpunitive and accepting of the child

Authoritarian: The parent tries to shape and control the child based on a set standard of conduct

Authoritative: The parent tries to direct the child rationally

The ideal is the authoritative. The kid grows up with a respect for authority, but doesn't feel strangled by it.

They teach "grit"

In 2013, University of Pennsylvania psychologist Angela Duckworth won a MacArthur "genius" grant for her uncovering of a powerful, success-driving personality trait called grit.

Defined as a "tendency to sustain interest in and effort toward very long-term goals," her research has correlated grit with educational attainment, grade-point average in Ivy League undergrads, retention in West Point cadets, and rank in the US National Spelling Bee.

It's about teaching kids to imagine — and commit — to a future they want to create.

They give their kids bias-proof names

A host of research shows just how much your name can affect your lifetime success, from your hireability to your spending habits.

Career-wise, people with names that are common and easy to pronounce, for example, have been found to have more success.

To help their kids develop a sense of body acceptance and a body-positive self-image, she says parents need to role model good attitudes about their own and others' bodies, healthy eating habits of their own, and a positive attitude about food.